Question

This figure is a square, with side lengths as shown.
`4 √(5) mm` What are the perimeter and the area of the square?The perimeter of the square is______ millimeters.The area of the square is______square millimeters.

Answer 1

Perimeter of a square: side lenght + side lenght + side lenght + side lenght

Perimeter = 4√5 + 4√5+ 4√5+ 4√5 = 16 √5 mm

Area of a square: Side lenght^2

Area = (4√5)^2 = 4^2 (√5)^2 = 16 x 5 = 80 mm2